Costing a Garment: Bill of Materials and Labor Basics

Fabric is usually the largest single cost in a garment, so estimating consumption accurately is where costing begins. Consumption is the total fabric a garment uses including the waste between pattern pieces, expressed as meters per unit at a given fabric width. The efficiency of the marker, how tightly the pieces nest, directly drives this number.

A tighter marker means less waste and a lower fabric cost per unit, which is why efficient pattern layout is a costing concern and not just a cutting-room one. A few percent of marker efficiency across a production run is real money.

• Fabric: consumption in meters multiplied by price per meter, per fabric.
• Trims: zips, buttons, elastic and tapes at unit price times quantity.
• Thread, interfacing and lining, often estimated as a small per-unit allowance.
• Labels, hangtags and packaging that ship with the finished garment.

Labor is costed by breaking construction into operations and estimating the time each takes, usually in standard allowed minutes. Sew the side seam, attach the collar, set the sleeve, finish the hem: each operation carries a time, and the sum is the total labor content of the garment. Multiplying total minutes by the labor rate gives the labor cost.

This operation-by-operation view is also a design feedback tool. A style that carries an extra ten minutes of labor for a decorative detail may not justify its price, and costing exposes that trade-off before the garment goes into production rather than after.

Direct material and labor are not the whole cost. Overhead, the rent, equipment, sampling and administrative cost of running the operation, must be spread across units, typically as a percentage uplift or a per-unit allocation. Ignoring overhead is how a business appears profitable on paper and loses money in reality.

For imported goods, add freight, duty and any import handling to reach the landed cost, the true cost of the garment in your warehouse. A price that looks healthy against the factory cost can turn thin once duty and freight are counted, so costing must include them from the start.

1. 1.Sum material, labor, overhead and landed costs to get the full garment cost.
2. 2.Apply your target wholesale margin to reach a wholesale price.
3. 3.Apply the retail markup, often a keystone multiple or higher, to reach retail.
4. 4.Check the retail price against the market and competitors for sanity.
5. 5.Work backward from a viable retail price to confirm the cost leaves room to live in it.

Pattern and sampling choices show up directly in cost. Efficient, production-ready patterns improve marker yield and cut fabric waste, while digital sampling reduces the number of expensive physical prototypes a style needs before it is right. Both push the true cost of a garment down without touching its quality.

Made-to-measure and on-demand models change the equation again, trading the economies of a long production run for the elimination of unsold inventory. Minerva Patterns supplies made-to-measure digital patterns in DXF AAMA, PLT and PDF, which suit on-demand production where each garment is costed and cut to order rather than made to stock.